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[目的/意义]在学科交叉融合的背景和趋势下,科研人员的跨学科研究行为促进了知识在不同学科之间的共享与流动。以基金领域为视角,研究学科知识流动,以期为基金管理工作提出建议。[方法/过程]提出基于基金代码共现的学科知识流动强度测量方法,并利用社会网络分析方法,对193 517个国家自然科学基金项目数据构建学科知识流动网络,探究网络的演变过程以及不同学科层次内知识流动路径。[结果/结论]通过以上分析,得到如下结论:学科知识流动网络是无标度网络,随着时间的推移,网络的规模和结构都发生显著的变化,网络中重要节点呈非稳态;不同学部之间,存在若干条较为重要的知识流动路径;在某一个学部内,具有较广影响力的一类学科往往更容易构成知识流动链条。
[Purpose / Significance] Under the background and trend of interdisciplinary integration, researchers’ interdisciplinary research practices promote the sharing and flow of knowledge among different disciplines. From the perspective of the fund field, we study the flow of subject knowledge and make recommendations for fund management. [Methods / Processes] This paper proposes a method to measure the strength of subject knowledge flow based on the co-occurrence of fund codes and uses social network analysis methods to construct disciplinary knowledge flow network of 193 517 NSFC project data to explore the evolution process of the network and different disciplines The path of knowledge flow within the hierarchy. [Result / Conclusion] From the above analysis, the following conclusions can be drawn: The knowledge transfer network is a scale-free network, with the passage of time, the size and structure of the network have undergone significant changes, and the important nodes in the network are non-steady; There are several important paths of knowledge flow among the departments, and within a certain department, the more influential ones tend to form the chain of knowledge flow more easily.